Scattering device on an arrayed waveguide grating

US8958665B2 · kind B2 · utility

Assignee

• Infinera Corp. · US

Inventors

• Peter W. Evans · Tracy, US
• Pavel Studenkov · Cupertino, US
• Mehrdad Ziari · Pleasanton, US
• Matthias Kuntz · Seeheim-Jugenheim, DE
• Scott Corzine · Sunnyvale, US
• Masaki Kato · Palo Alto, US
• Vikrant Lal · Sunnyvale, US

Key dates

• Filing date: Nov 13, 2012
• Grant date: Feb 17, 2015
• Expiry date: Dec 15, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B6/2746
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An optical device may include a substrate; an arrayed waveguide grating provided on the substrate and having first and second slabs; multiple first waveguides extending from the first slab, the multiple first waveguides may supply respective first optical signals to the first slab; multiple second waveguides extending from the second slab, the multiple second waveguides may supply respective second optical signals to the second slab; a third waveguide extending from the second slab, the third waveguide outputting a third optical signal from the second slab, the third optical signal including the first optical signals; a fourth waveguide extending from the first slab, the fourth waveguide may output a fourth optical signal from the first slab, the fourth optical signal including the second optical signals; and a first scattering device optically coupled to a portion of an edge of the first slab between the multiple first waveguides and the fourth waveguide.